How do you tell your'e teacher/principal sorry for being rude through an e-mail. and for telling them "screw this class? " then walking out of their class?

Which metals are called noble metals

How many grams are in one mole of lead?

1) a. water molecule breaks up into hydrogen and oxygen on passing electricity. does this involve breaking intermolecular or intramolecular forces of attraction. explain b. on boiling water changes to water vapor. does this involve breaking intermolecular or intramolecular forces of attraction. explain methanol evaporates faster than water. contrast the intermolecular forces and the vapor pressures of methanol and water?